Concrete-mixer.



Patented Feb. 28,1911.

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W. L. JONES. CONCRETE MIXER. APPLICATION FILED JUNE 22, 1909 PatentedFeb. 28, 1911.

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W. L. JONES.

CONCRETE MIXER.

APPLICATION FILED JUNE 22, 1909.

985,602., Patented Feb. 28, 1911;

3 SHEETS-SHEET 3.

WALTER L. JONES, OF THOMSON, ILLINOIS.

CONCRETE-MIXER.

Specification of Letters Patent.

Patented Feb. 28, 1911.

Application filed June 22, 1909. Serial No. 503,743.

To all whom it may concern:

Be it known that I, YVALTER L. J owns, citizen of the United States,residing at Thomson, in the county of Carroll and State of Illinois,have invented certain new and useful Improvements in Concrete-Mixers, ofwhich the following is a specification.

This invention relates to mixing machines and more particularly to amachine espe cially designed for mixing cement, gravel and similarmaterials preparatory to molding the same into the desired shape.

The object of the invention is to provide a mixing machine includingrelatively sta tionary and movable members, one of which is providedwith depending agitating fingers which co-act with the movable memberfor stirring or blending the materials to be mixed, provision being madefor spraying said materials during the mixing operation.

A further object is to provide an annular receiving member or troughmounted for rotation with a movable mixing disk and from which thematerial is discharged into a wheel-barrow or other suitable receptacledesigned to receive the same.

A further object is to provide means for controlling the flow of waterfrom the sup ply tank to *the mixing members or disks,

and means for adjusting the agitating fingers, thereby to either retardor accelerate the movement of the materials toward the receiving trough.

A still further object of the invention is generally to improve thisclass of devices so as to increase their utility, durability andefliciency.

Further objects and advantages will appear in the following description,it being understood that various changes, in form, proportions and minordetails of construction may be resorted to within the scope of theappended claims.

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the details of construction, reference isto be had to the following description and accompanying drrwings, inwhich:

Figure 1 is a longitudinal sectional view of a portable'mixing machine,constructed in accordance with my invention; Fig. 2 is a top plan viewthereof partly in section;

Fig. 3 is a perspective view of the liquid cylinders and pitmen foroperating the same, the cylinders and pitmen being detached from themachine; Fig. 1 is a horizontal sectional view through one of thecylinders; Fig. 5 is a perspective view of one of the agitating fingersand its shoe or plow detached. Fig. (3 is a perspective view of amodification illustrating different means for securing the agitatingfingers from that in Fig. 1.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

The mixing machine forming the subject matter of the present inventionis preferably mounted on a truck including front and rear axles 5 and 6on which are mounted for rotation ground wheels 7, the front axle 5being provided with a suitable handle 8 by means of which the truck maybe transported from one place to another. Extending vertically from thefront and rear axles of the truck, is a supporting frame 9 includingspaced longitudinal bars 10 and 11 in which is journaled a verticallydisposed shaft or spindle 12.

Keyed or otherwise rigidly secured to the spindle or shaft 12, is amovable mixing member or disk 13 having a centrally disposed convexportion 14 and a circumferential flat portion 15, the materials to bemixed being deposited on the convex portion 1 1 and thrown outwardly bycentrifugal force as said disk revolves.

Disposed above and spaced from the movable disk 13, is a stationary diskor mixing member 16, the latter being rigidly secured to the upper bar10 of the supporting frame by bolts or similar fastening devices 17. Thestationary disk 16 is provided with a central opening 18 through whichthe materials are delivered to the lower mixing member or disk 13, saidstationary disk being provided with a plurality of concentric openings19, the walls of which are threaded for the reception of correspondinglythreaded agitating fingers 20. The threaded ends of the agitatingfingers 20 pass through the stationary disk 16 for engagement withsuitable clamping nuts 21, while the lower ends thereof are flattenedand provided with elongated slots 22 for the reception of bolts orsimilar fastening devices 23, the latter serving to retain the mixingshoes 24 in position on the agitating fingers 20. Attention is herecalled to the fact that by loosening the clamping nuts 21 and rotatingthe fingers or pins 20, the position of the mixing shoes 24 may bechanged so as to either retard oraccelerate the discharge of thematerials to be mixed, while by loosening the fastening devices 23, theshoes 24 may be adjusted vertically of the fingers 20 and thus space thelower ends of the shoes at any desired distance from the upper surfaceof the lower mixing member or disk 13.

Surrounding the lower member 13 and spaced from the peripheral edgethereof, is an annular receiving member or trough 25 having itsintermediate portion inclined downwardly at 26 so as to deflect the material deposited on the wall 26 downwardly on the lower edge or flange 27.The receiving trough 25 is mounted for rotation with the lower mixingmember or disk 13, and is preferably connected with the latter throughthe medium of one or more braces 28.

Secured to'the lower longitudinal bar 11 of the supporting frame, is astandard 29 to the upper end of which is secured one end of ahorizontally disposed arm 30, the opposite end of the arm 30 beinginclined to conform to the inclination of the wall 26 of the receivingtrough and arranged to scope the inwardly extending flange 27 of saidtrough so as to discharge the materials deposited on the flange 27 intoa wheel-barrow or other suitable receptacle designed to receive thesame.

Mounted 011 the supporting frame above the stationary mixing member ordisk 16, are spaced hoppers 31 and 32, one of which is adapted toreceive cement and sand, and the other gravel, the materials in thehoppers 31 and 32 being fed through the discharge spouts 33 and opening18 in the upper disk 19 to the convex portion 14 of the lower disk 13,where they are thrown outwardly by centrifugal force and are thoroughlyagitated and blended by contact with the mixing shoes 24. As a means forspraying the materials during the mixing operation, there is provided asupply tank or fountain 34, the latter being mounted on one end of themachine and retained in position by suitable diagonal braces 35.

Deposited on opposite sides of the shaft or spindle 12, are boxes orcylinders 36, each being connected to the fountain or tank 34 by aconductor 37. The cylinders 36 are provided with terminal flanges 38 forattachment to the upper surface of the station ary disk 10, saidcylinders being formed with longitudinally disposed guides 39, in whichare mounted'for reciprocation sliding valves 40. The valves 40 are eachprovided with a series of openings 41 adapted to register withcorresponding openings 42 formed in the wall of the adjacent cylinderand the guide 39 respectively, thereby to control the flow of water tothe mixing disks.

Threaded in the openings 42 of the guide 39, are pipe sections 43, whichlatter extend through the upper mixing disk or plate 16 and are providedwith terminal discharge nozzles 44 arranged a suitable distance apart soas to permit uniform spraying of the surface of the movable member ordisk 13 and thus insure the proper blending of the materials during themixing operation.

Journaled in suitable bearings 45 on one end of the supporting frame, isa transverse shaft 46 having terminal crank arms 47 to each of which ispivotally connected at 48, the adjacent end of a pitman 49, the opposite ends of the pitman 49 being pivotally connected at 50 with theadjacent valves 40. One end of the transverse shaft 46 is provided witha terminal operating handle 51 by means of which the valves 40 may beoperated simultaneously to control the flow of water from the tank orfountain 34 to the several discharge nozzles on opposite sides of themachine.

The machine may be operated either manually or from any suitable sourceof power, and by way of illustration is shown as provided with a crank52 having connection with the upper end of the shaft or spindle 12 sothat by turning the crank 52, motion may be imparted to the lower mixingmember or disk 13.

In operation, cement and gravel are placed in the hoppers 31 and 32 andthe lower disk 13 set in motion by rotating the crank 52. As thematerials in the hoppers 31 and are deposited on the convex portion 14of the lower disk or mixing member 13, said materials will be thrownoutwardly by cen trifugal force and into contact with the terminal shoes24 of the mixing fingers, thus thoroughly mixing or blending thedifiterent materials, which latter are subjected to the action of aliquid spray from the nozzles 44 when the handle 51 is operated. As thelower disk 13 revolves, the materials will be thrown outwardly againstthe inclined walls 26 of the receiving trough and thence fall on thelower flange 27 thereof, the concrete being discharged from thereceiving trough into a wheel-barrow or other suitable receptacle bymeans of the arm 30, as before stated. By rotating or partially rotatingthe fingers 20 of the upper disk 16, the terminal shoes 24 of'saidfingers may be disposed at any angle to each other so as to eitherretard or accelerate the delivery of the material to the receivingtrough.

In Fig. (5 of the drawings, the upper end of the finger 20 is providedwith an angularly disposed arm 53, the end of which is bifurcated toreceive the bolt or fastening device 54-.

Having thus described the invention, what is claimed as new is:

1. A mixing machine including a supporting frame, a stationary mixingmember, a movable mixing member spaced from the stationary member, areceiving trough surrounding the lower mixing member and movabletherewith, agitating fingers depending from the stationary member andadjustable to either retard o-r accelerate the flow of material to thereceiving trough, and a stationary scraper for removing the materialfrom the receiving trough.

2. A mixing machine including a supporting frame, a stationary mixingmember, a movable mixing member mounted for rotation beneath thestationary member, a receiving trough secured to and surrounding themovable member, agitating fingers de pending from the stationary member,and an arm secured to a fixed portion of the frame and projecting withinthe trough for discharging the materials deposited thereon.

3. A mixing machine including a supporting frame, a stationary mixingmember, a movable mixing member mounted for retation beneath thestationary member, a trough surrounding the movable member and mountedfor rotation therewith, vertically adjustable agitating fingersdepending from the stationary member, mixing shoes carried by andadjustable both vertically and laterally independently of the fingers,and means for subjecting the materials deposited on the movable mixingmember to the action of a liquid spray during the rotation of saidmovable member.

st. A mixing machine including a supporting frame, a stationary mixingmember, a movable mixing member mounted for rotation beneath thestationary member, a trough surrounding the movable member and mountedfor rotation therewith, vertically adjustable agitating fingersdepending from the stationary member and having their lower endsslotted, mixing shoes carried by the slotted ends of the fingers andadjustable vertically independently of said fingers, and bolts extendingthrough the shoes and the fingers for securing the shoes in adjustedposition.

5. A mixing machine including a wheeled truck, a frame mounted on thetruck, a stationary mixing member secured to the frame, a movable mixingmember mounted for rotation beneath the stationary member and having acentral convex portion, a trough secured to and surrounding the movablemixing member, agitating fingers depending from the stationary member,an arm secured to a fixed portion of the frame and projecting within thetrough for discharging the material therefrom, and means for subjectingthe material to the action of a liquid spray during the operation of themixing member.

(3. A mixing machine including a supporting frame, a stationary mixingmember secured to the frame, a movable mixing member mounted forrotation beneath the stationary member, a receiving trough movable withthe revolving mixing member and having an intermediate inclined wall andan inwardly extending flange, agitating fingers depending from thestationary mixing member, and an arm projecting within the trough andhaving its free end inclined to conform to the incline of the trough andadapted to discharge the materials deposited on said trough into areceptacle.

7. A mixing machine including a supporting frame, a stationary mixingmember secured to the frame, a movable mixing member mounted forrotation beneath the stationary member, a trough surrounding the movablemixing member and mounted for rotation therewith, agitating fingersdepending from the stationary mixing member, a liquid supply tank, acylinder having conductors secured thereto and projecting through thestationary mixing member and provided with spray nozzles, a conductorconnecting the cylinder with the supply tank, and a valve for regulatingthe flow of liquid from the cylinder to the discharge nozzles.

8. A mixing machine including a mixing device, a liquid supply tank,spaced cylinders mounted above the mixing device, conductorscommunicating with the interior of the cylinders and provided withterminal nozzles for spraying the material on the mixing device,conductors connecting the tank and cylinders, valves for controlling theflow of liquid from the cylinders to the spraying nozzles, a transverseshaft,

pitmen forming a connection between the shaft and the adjacent valves,and an operl ating handle secured to the shaft for actuating the latterto simultaneously operate both valves.

9. A mixing machine including a mixing device, a liquid supply tank,cylinders disposed above the mixing device and provided with guides,there being a series of perforations formed in the guides and one wallof each cylinder, respectively, pipes communi eating with the openingsin the guides of the cylinders and provided. with terminal nozzles forspraying the material on the mixing device, valves mounted forreciprocation in the guides of the cylinders and provided with openingsadapted to register with the openings in the guides and cylinders,respectively, for controlling the flow of liquid to the sprayingnozzles, a shaft provided with crank arms, and means forming aconnection between the crank arms and adjacent valves for simultaneouslycontrolling the movement of both valves.

10. A mixing machine including a supporting frame, a spindle journaledin the supporting frame, a movable mixing member mounted for rotationwith the spindle, a stationary mixing member secured to the frame andprovided with depending agitating fingers co-acting with the uppersurface of the movable mixing member, said stationary member beingprovided with a centrally disposed opening and the movable member beingprovided with a concaved portion disposed beneath the opening in thestationary member, a receiving trough surrounding the mixing member, ahopper for delivering material through the opening in the stationarymember to the convex portion of the mixing member, and means forspraying the material on the mixing member when the latter is rotated.

11. A mixing machine including co acting relatively stationary andmovable mixing members, cylinders supported by one of the mixing membersand provided with nozzles extending through the stationary mixing memberfor spraying liquid on the material between said mixing members, aliquid supply tank communicating with said cylinders, valves forcontrolling the flow of liquid from the cylinders to the sprayingnozzles, an operating shaft, and a connection between the operatingshaft and valves for simultaneously opening and closing the latter.

12. A mixing machine including coacting relatively stationary andmovable mixing members, agitating devices carried by one of the mixingmembers, ,spaced liquid re ceiving cylinders disposed above the mix- 0ing members and provided with guides, spraying nozzles connected withthe cylinders and extending through the stationary mixing member forspraying liquid on the material between said mixing members, there beingopenings formed in the walls of the cylinders and registering with theinner ends of the nozzles, a liquid supply tank connected with thecylinders, valves slidably mounted in the guides and provided v withopenings registering with the openings in the cylinders for controllingthe flow of liquid to the nozzles, an operating shaft, and a connectionbetween the operating shaft and valves for simultaneously operating thelatter.

In testimony whereof I affix my signature in presence of two witnesses.

VALTER L. JONES. [1 s] Witnesses E. M. GAAR, N. F. MiLLARD.

Gopies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

